GB/T 12459  同心异径管 DN 580×10-Sch10RC0SM0 R70082S

DN 580×10-Sch10 RC0SM0 R70082S

WN40-300RF sch20=6.5M Sch80

WN 2000(B)-40 G S=5.5 sc

BI 2800‰F0SM0 R Ro RFFR�F R�

2 RF 1300-1.0 δ1=8FSCH40

pl40(b)-16 rf f1=3

3 FM 1400-1.0 δ0=12

PL 100(B)-10 RFL= RF2M Sch4RCmSCR

WN50B-25RF S=610mF0t

BL1400-2.